CVE-2026-92220

vllm-project vLLM MoRIIO Acknowledgement moriio_connector.py MoRIIOWrapper._handle_release_message resource consumption

MEDIUM
5.3
CVSS Score
Published: September 16, 2026 at 02:15 AM UTC
Updated: September 16, 2026 at 08:17 PM UTC
1 product affected across 1 vendorvLLM

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

A vulnerability was found in vllm-project vLLM 0.26.0/0.27.0. Affected is the function MoRIIOConnectorScheduler.request_finished/MoRIIOConnectorWorker.get_finished/MoRIIOWrapper._handle_release_message of the file vllm/distributed/kv_transfer/kv_connector/v1/moriio/moriio_connector.py of the component MoRIIO Acknowledgement Handler. Performing a manipulation of the argument request_id/kv_transfer_params results in resource consumption. It is possible to initiate the attack remotely. The project was informed of the problem early through a pull request but has not reacted yet.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/404470
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/404470/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-92220
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/934149
Issue TrackingPatch
Source: cverecord
https://github.com/vllm-project/vllm/pull/50674

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400CWE-404

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